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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | ha | 1 | ; |
| 2 | ; Call of videomode driver's functions |
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| 3 | ; |
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| 4 | ; (Add in System function 21 (and/or 26) as a subfunction 13) |
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| 5 | ; |
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| 6 | ; Author: Trans |
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| 7 | ; Date: 19.07.2003 |
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| 8 | ; |
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| 9 | ; Include in MeOS kernel and compile with FASM |
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| 10 | ; |
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| 49 | mikedld | 11 | |
| 12 | uglobal |
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| 13 | old_screen_width dd ? |
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| 14 | old_screen_height dd ? |
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| 15 | endg |
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| 16 | |||
| 1 | ha | 17 | cmp eax,13 ; CALL VIDEOMODE DRIVER FUNCTIONS |
| 18 | jne .no_vmode_drv_access |
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| 49 | mikedld | 19 | pushd [0x0000fe00] [0x0000fe04] |
| 20 | popd [old_screen_height] [old_screen_width] |
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| 1 | ha | 21 | or eax,-1 ; If driver is absent then eax does not change |
| 22 | call 0x760100 ; Entry point of video driver |
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| 23 | mov [esp+36],eax |
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| 24 | mov [esp+24],ebx |
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| 25 | mov [esp+32],ecx |
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| 26 | ; mov [esp+28],edx |
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| 49 | mikedld | 27 | mov eax,[old_screen_width] |
| 28 | mov ebx,[old_screen_height] |
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| 29 | sub eax,[0x0000fe00] |
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| 30 | jnz @f |
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| 31 | sub ebx,[0x0000fe04] |
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| 32 | jz .resolution_wasnt_changed |
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| 33 | jmp .lp1 |
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| 34 | @@: sub ebx,[0x0000fe04] |
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| 35 | .lp1: sub [screen_workarea.right],eax |
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| 36 | sub [screen_workarea.bottom],ebx |
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| 37 | |||
| 38 | call repos_windows |
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| 39 | call calculatescreen |
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| 40 | |||
| 41 | .resolution_wasnt_changed: |
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| 1 | ha | 42 | ret |
| 43 | .no_vmode_drv_access: |